Title :
A 2.5 V broadband multi-bit /spl Sigma//spl Delta/ modulator with 95 dB dynamic range
Author :
Vleugels, K. ; Rabii, S. ; Wooley, B.A.
Author_Institution :
Center for Integrated Syst., Stanford Univ., CA, USA
Abstract :
A cascaded multi-bit /spl Sigma//spl Delta/ modulator uses double sampling to achieve a conversion rate of at least 4 MSample/s at an oversampling ratio of 16. Partitioned data-weighted averaging extends the dynamic range to 95 dB. The circuit, integrated in 0.5 /spl mu/m CMOS, dissipates 150 mW from a 2.5 V supply.
Keywords :
CMOS integrated circuits; sigma-delta modulation; signal sampling; 0.5 micron; 150 mW; 2.5 V; CMOS; conversion rate; double sampling; dynamic range; multi-bit sigma-delta modulator; oversampling ratio; partitioned data-weighted averaging; Baseband; Capacitors; Clocks; Delta modulation; Dynamic range; Negative feedback; Sampling methods; Signal resolution; Signal sampling; Switches;
Conference_Titel :
Solid-State Circuits Conference, 2001. Digest of Technical Papers. ISSCC. 2001 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-6608-5
DOI :
10.1109/ISSCC.2001.912541
